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PluginCanary

PDF.js Viewer

by Ben Lawson · 20,000+ active installs · Checked 3 Nov 2026
Healthy

Healthy: PDF.js Viewer is maintained, has no open risk signals and no unpatched vulnerabilities.

91/ 100 Canary Score
Sub-scores for PDF.js Viewer
Ownership100
Maintenance100
Security100
Support70
Reputation70

How the score works

Active signals

Facts we detected, with links to the source.

No open risk signals. Signals appear here when we detect an ownership change, closure, vulnerability or decline.

Ownership timeline

Who commits to the plugin's code on wordpress.org, over time.

Committers and their active periods
abuhayat27 Mar 2020 to 27 Mar 2020, 1 commits
TwisterMc1 Apr 2020 to 26 Oct 2026, 95 commits

2 committers recorded. No ownership changes recorded since 3 Nov 2026.

Maintenance

Last release
9 days ago
Releases, 24 months
10
Tested up to
7.0 vs 7.1
Requires PHP
7.4 supported 8.2+
Releases per quarter for PDF.js Viewer
Q1 20241
Q2 20241
Q3 20242
Q4 20240
Q1 20250
Q2 20250
Q3 20251
Q4 20253
Q1 20263
Q2 20262
Q3 20260
Q4 20261

Last release 26 Oct 2026. Tested up to 7.0, 1 major version behind WordPress 7.1.

Support

0% of 1 support threads resolved in the last 2 months.

Security record

PublishedIssueCVSSAffectedFixed inDays to patch
20 May 2024PDF.js < 4.2.67 - Arbitrary JavaScript Execution6.4<= 2.1.8.12.221
10 Jan 2023PDF.js Viewer <= 2.1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode6.4<= 2.1.72.1.80
11 Aug 2021PDF.js Viewer <= 2.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting5.4< 2.0.22.0.276

Source: Wordfence Intelligence.

Reputation

Average rating per quarter for PDF.js Viewer
Q2 20243.3
Q3 20245.0
Q1 20255.0
Q3 20255.0

Average rating rose from 3.3 to 5.0 between Q2 2024 and Q3 2025.

Rating distribution
5 star37
4 star7
3 star4
2 star3
1 star2
Latest low reviews

Momentum

20,000+ active installs. History builds with each weekly snapshot.

Weekly downloads, last 27 weeks
Weekly downloads for PDF.js Viewer
4 May 2026751
11 May 20261,368
18 May 20261,683
25 May 20261,078
1 Jun 2026980
8 Jun 2026917
15 Jun 2026811
22 Jun 2026765
29 Jun 2026708
6 Jul 2026722
13 Jul 2026703
20 Jul 2026876
27 Jul 2026787
3 Aug 2026872
10 Aug 2026719
17 Aug 2026766
24 Aug 2026743
31 Aug 2026799
7 Sep 2026708
14 Sep 2026818
21 Sep 2026791
28 Sep 2026883
5 Oct 2026765
12 Oct 2026683
19 Oct 20261,157
26 Oct 202610,807
2 Nov 2026425

Weekly downloads over the last 4 weeks are 167% above the 27-week average.

Healthier alternatives

Same category, higher Canary Score. Never sponsored.

Shortcoder - Create Shortcodes for AnythingScore 92 · 100,000+FluentSnippets - High-Performance Code Snippets, Header & Footer Code, Custom CSS & PHP Code ManagerScore 92 · 50,000+

Facts

Version3.2.0
AuthorBen Lawson
Added1 Nov 2013
Last updated26 Oct 2026
Active installs20,000+
Requires WordPress5.0
Tested up to7.0.8
Requires PHP7.4
CategoryContent Management > Document Management & Downloads
Tagspdf, embed, pdfjs, viewer, mozilla

Questions

Is PDF.js Viewer still maintained?

PDF.js Viewer was last updated on 26 Oct 2026. Its Canary status is Healthy.

Is PDF.js Viewer safe?

PDF.js Viewer has no open unpatched vulnerabilities on record. 0 vulnerabilities were published in the last 24 months. Its Canary status is Healthy.

Who owns PDF.js Viewer?

The wordpress.org author is Ben Lawson. Recent committers: TwisterMc, abuhayat, FalconerWeb, plugin-master. We have recorded no ownership change.

What can I use instead of PDF.js Viewer?

Plugins in the same category with a higher Canary Score: Shortcoder - Create Shortcodes for Anything, FluentSnippets - High-Performance Code Snippets, Header & Footer Code, Custom CSS & PHP Code Manager.

Data: wordpress.org Plugins API, plugins SVN and Trac, wordpress.org reviews, Wordfence Intelligence.Plugin data refreshed 3 Nov 2026.Report a data issue